package com.atguigu.gulimall.member.exception;

/**
 * @version 1.0
 * @Author yanjingren
 * @Date 2021/6/8
 * @Description com.atguigu.gulimall.member.exception
 */
public class UsernameExistException extends RuntimeException {
    public UsernameExistException() {
        super("用户名已经存在");
    }
}
